This category is intended for websites about the biology of specific organisms or taxonomic groups. The structure is organized according to a taxonomy tree, with the top-level subcategories being the five Kingdoms plus Viruses. Potential contents include descriptions and images of the organisms, classification, anatomy, physiology, behavior, distribution, reproduction and life cycle, habitat, biological or ecological aspects of management, endangered-species status, etc.
Library of high resolution stock wildlife photographs by John Visser.
An extensive collection of thousands of videos, images and fact-files illustrating the world's species gathered into one centralised digital library.
Classification of all forms of life, with some photos. Has a strong South African emphasis.
Large selection of pictures of organisms, mostly British in origin. Images are an aid to identification, showing different stages, states and views of the organisms. Search the database or follow a taxonomic tree.
Taxonomic tree of plants and animals with a photo gallery and some checklists for the Czech Republic and Slovakia. In Czech and English.
A global network of researchers engaged in a ten-year initiative to assess and explain the past, present, and future diversity, distribution, and abundance of marine life in the oceans.
An introduction to the naming and relationships of living things. Classification involves much human judgement and is in a constant state of flux as new information is discovered.
Information about taxonomy, natural history, distribution, abundance, and ecology of many species worldwide. Includes tools to identify, map, and database species.
A new project to create an online reference source and database for every one of the 1.8 million species that are named and known on this planet. Includes FAQ and press resources.
Information on the plants, animals, and fossils of Ireland. Includes an encyclopedia of marine life of the UK. From the Ulster Museum Sciences Division.
Database covering the flora and fauna of the world with a checklist for each country.
Site and community for reporting personal observations of any plant or animal species in the world.
Authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.
A species search engine from Rod Page of Glasgow University. Search on either the common or Latin name of a species. Results are generated by querying other data sources.
Taxonomic tree of mammals, insects, birds, and plants. Includes common and scientific names, publication details, references, links, general range maps, and some images. Most complete for Lepidoptera.
A compilation of various phylogenetic trees representing different views of taxonomy. Includes links to other taxonomic websites.
Photos, facts, and links to information about birds, butterflies, mammals, and wildflowers of this region.
Searchable and browsable taxonomy tree of organisms for which there are publicly available gene sequences.
Collaborative effort of biologists from around the world, providing information about the diversity of organisms on Earth, their evolutionary history (phylogeny) and characteristics.
Database of photos and fact sheets for animals and plants occurring in this state. Includes lists of sensitive, threatened, and endangered species.
Wikimedia Foundation project that aims to catalog all species.
Society of cladisticians, publishes the journal "Cladistics"
WoRMS aims to provide an authoritative and comprehensive list of names of marine organisms, including information on synonymy.
Fact sheets and photos for mammals, birds, trees and other plants of boreal regions.
Thanks to DMOZ, which built a great web directory for nearly two decades and freely shared it with the web. About us